Geum River

Geum (금강)
River
The Geum River
Country	South Korea
Provinces	North Jeolla, North Chungcheong, Daejeon, Sejong, South Chungcheong
Parts	Gangtaedeunggol, Subuncheon
Tributaries
- left	Gapcheon, Ganggyeongcheon
- right	Mihocheon
Source	Sobaek Mountains
- location	Sinmu Mountain, Jangsu, North Jeolla
Mouth	Yellow Sea
- location	Esturay bank, Seocheon, South Chungcheong
Length	397 km (247 mi)
Basin	9,912 km2 (3,827 sq mi)
Discharge	for Gongju Bridge, Gongju
- average	132 m3/s (4,662 cu ft/s)
The Geum River is the thick blue line.

The Geum River is located in South Korea. It is a major river that originates in Jangsu-eup, North Jeolla Province. It flows northward through North Jeolla and North Chungcheong Provinces and then changes direction in the vicinity of Greater Daejeon and flows southwest through South Chungcheong Province before emptying into the Yellow Sea near Gunsan city.

The river is 401 kilometres (249 mi) long, making it the third longest in South Korea. The area of the Geum River Basin is 9,859 square kilometres (3,807 sq mi). The upper part of the river flows slowly through part of the Noryeong Mountains and is marked by extensive stream meandering. On the other hand, river curves on middle and lower parts of the river are more gradual and there is comparatively less stream meandering.

Tributary streams of the Geum include the Gap-cheon, Yugu-cheon, Miho-cheon, Unsan-cheon, Seokseong-cheon, and Nonsan-cheon. Several small alluvial plains including the Honam and Nonsan Plain have been formed by the flow of the Geum and its tributaries.

In the area of Buyeo County, the river bears the name Baengma-gang, which means White Horse River. Numerous legends associate the ancient kingdom of Baekje with the Baengma. The Baengma River is the subject of a well-known song of the sin minyo tradition, Kkumkkuneun Baengma-gang (꿈꾸는 백마강, "Dreaming Baengma-gang").

The Geum River and its tributaries were a means of cultural contact from prehistoric times (see Mumun Pottery Period) and into the Three Kingdoms of Korea through their ancient function as a transportation route that begins on the west coast and penetrates deep in the interior of the Peninsula. Bronze Culture flourished in this area from c. 850 B.C.-A.D. 100 (see Liaoning bronze dagger culture). Archaeological evidence suggests that some of the very first complex societies in southern Korea briefly flourished in the valleys formed by tributaries of this river.